Site cast sealed water-stop joint

Abstract

The invention discloses a site cast sealed water-stop joint, relating to a water pipe connector and comprising a hollow water pipe connector (1), wherein a bottom edge (2) is arranged on the external peripheral wall at the bottom of the water pipe connector (1) and is provided with a mounting hole (3); a water-stop step (4) is arranged on the external peripheral wall of the water pipe connector (1) above the bottom edge (2); the step face of the water-stop step (4) is provided with at least one water-stop ring (5), and the water-stop step (4) is provided with a groove matched therewith; and adouble-layer plug-in bottom bell mouth is arranged below the water-stop step. The water-stop ring is fixed on the water-stop step on the external surface of the water pipe connector, and simultaneously a dermatoglyph processing section on the external surface of the water pipe connector between the water-stop step and the part from the water-stop step to the bottom edge can ensure the waterproof effect of the water-stop joint and a pre-contact surface, thereby effectively reducing the possibility of leakage due to long time use after installation, and moreover, a site cast fixed hole on the bottom edge can maximally reduce size error when in installation.

Description

technical field [0001] The invention relates to a water pipe joint, in particular to a cast-in-place sealed water-stop joint. Background technique [0002] In building engineering construction, it is often necessary to install pipe joints in the floor. The current method is usually to reserve holes earlier in the construction process, and then use concrete to fill the gap between the pipeline and the hole wall after the pipeline is installed. However, due to the shrinkage and creep of concrete, there will be cracks around the pipes. Once there is water in the room, the water will leak down along the cracks. This has directly influenced the normal use of house, also brought great inconvenience to people's life. [0003] At present, there are already water-stop joints on the market specifically for the above situation. One is to set a ring of water-stop bottom molds on the lower periphery of the water pipe joints, and to open inwards on the wall of the water pipe joints at t...

AI Technical Summary

Problems solved by technology

However, when using this water-stop device, holes still need to be reserved during the construction process. After the water-stop section is installed in the pipe hole, concrete will be poured and compacted between the water-stop section and the hole wall. The installation process is complicated; the other is the cast-in-place water-stop section, which no longer needs to reserve holes during the construction process, and the water-stop section pipe substitute and the cast-in-place plate are cast in one time, but this structure Relatively simple, the water-stop effect is unstable, and it is still prone to water leakage after long-term use

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